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RamEx-Flow
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<template>
  <div class="confusion-matrix">
    <div class="matrix-container">
      <table class="matrix-table">
        <thead>
          <tr>
            <th></th>
            <th v-for="label in labels" :key="label" class="header-cell">{{ label }}</th>
          </tr>
        </thead>
        <tbody>
          <tr v-for="(row, rowIndex) in matrix" :key="rowIndex">
            <td class="row-label">{{ labels[rowIndex] }}</td>
            <td 
              v-for="(cell, colIndex) in row" 
              :key="colIndex"
              class="matrix-cell"
              :class="{ 'diagonal': rowIndex === colIndex }"
              :style="getCellStyle(cell)"
            >
              {{ cell }}
            </td>
          </tr>
        </tbody>
      </table>
      <div v-if="isValidation" class="color-bar">
        <div class="color-scale">
          <span>0</span>
          <div class="color-gradient"></div>
          <span>100</span>
        </div>
      </div>
    </div>
  </div>
</template>

<script setup lang="ts">
import { computed } from 'vue'

interface Props {
  matrix: number[][]
  labels?: string[]
  isValidation?: boolean
}

const props = withDefaults(defineProps<Props>(), {
  labels: () => ['0h', '100h', '20h', '60h'],
  isValidation: false
})

const maxValue = computed(() => {
  return Math.max(...props.matrix.flat())
})

const getCellStyle = (value: number) => {
  if (!props.isValidation) {
    return {
      backgroundColor: value > 0 ? '#1a1a1a' : '#f6f6f6',
      color: value > 0 ? 'white' : '#a0aec0'
    }
  }
  
  // 验证集使用渐变色
  const intensity = value / maxValue.value
  const hue = 210 // 蓝色
  const saturation = 70
  const lightness = 100 - (intensity * 40) // 从浅到深
  
  return {
    backgroundColor: `hsl(${hue}, ${saturation}%, ${lightness}%)`,
    color: intensity > 0.5 ? 'white' : '#2d3748'
  }
}
</script>

<style scoped>
.confusion-matrix {
  width: 100%;
}

.matrix-container {
  background: white;
  border-radius: 3px;
  padding: 1rem;
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 0.5rem;
}

.header-cell {
  padding: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: #4a5568;
  text-align: center;
  border-bottom: 2px solid #e2e8f0;
}

.row-label {
  padding: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: #4a5568;
  text-align: right;
  border-right: 2px solid #e2e8f0;
}

.matrix-cell {
  padding: 0.75rem;
  text-align: center;
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid #e2e8f0;
  transition: all 0.3s ease;
}

.matrix-cell.diagonal {
  font-weight: 700;
}

.color-bar {
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid #e2e8f0;
}

.color-scale {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: #718096;
}

.color-gradient {
  flex: 1;
  height: 8px;
  background: linear-gradient(to right, 
    hsl(210, 70%, 100%), 
    hsl(210, 70%, 60%)
  );
  border-radius: 3px;
}
</style>